Trilobites are found worldwide and evolved rapidly, making them easily distinguishable from trilobites of other time periods
Answer is A. A population becomes separated by environmental factors into two groups that do not reproduce with one another.
When a population of a species become geographically separated then gene flow between them stops. Over a period of time, the population may become genetically different in response to the natural selection due to different environments. Selection and genetic drift will act differently on these two separated populations. This will results into two separate species. This type of speciation is called allopatric speciation.
Answer: matter that settles to the bottom of a liquid dregs.
Sedimentary rocks are classified based on how they form and on the size of the sediments, if they are clastic.
Explanation:
Answer: d. assimilating the nitrogen into their own biomolecules.
Explanation: I just had this question for an assignment.
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I am pretty sure it is <span>D. Microbiologist</span>
